SAmsung A530 unlock (credits) error

Try to unlock and give this error
Waiting ADB device... OK
Reading phone info...
Model: SM-A530F
Android version: 8.0.0
PDA version: A530FXXU2BRG1
CSC version: A530FOXM2BRG1
Phone version: A530FXXU2BRG1
Product code: SM-A530FZKDDBT
CSC country code: Germany
CSC sales code: DBT
Phone SN: R58K64DMJBK
IMEI: 3584xxxxxxxx
HW version: REV0.3
RF cal date: 20180623
Chip name: EXYNOS7885
Modem board: SHANNON327
Security patch: 2018-07-01
Boot Warranty bit: 0
Searching server... OK
Checking server answer... modem required
Initialization zTool... OK
Running zTool, please wait...
Start... OK
Initialization... OK
Generate and check client proof... OK
Verify proof by client... OK
Reading data from phone... OK
Rebooting phone... OK
Waiting for device to become ready... OK
Reading data from phone... OK
Searching server... OK
Waiting for server answer... OK
Checking server answer... error (0.2)

Done with Samsung Tool PRO v.33.2